A group of professors have warned people to be wary of this rare tattoo reaction that can cause some people to go blind.
Tattoos have become increasingly mainstream in many parts of the world, with much of the old stigma fading over the past decade.
These days, it’s far less common to hear blanket claims that a tattoo automatically ruins your chances of employment.
That said, highly visible placements—such as facial tattoos—or designs that some workplaces consider offensive can still affect job prospects in certain industries.
Separate from social perceptions, professors writing in Science Alert have highlighted a medical complication linked to tattoos that, while uncommon, appears to be showing up more often.
The issue involves a tattoo-related eye condition known as tattoo-associated uveitis, which is being diagnosed in a growing number of people.
So what exactly is it, and how can a tattoo be connected to eye problems?
Tattoos can affect the eyes indirectly through the body’s immune reaction—particularly to certain ingredients and pigments used in ink. Crucially, regulations vary widely: an additive restricted in one country due to potential health risks may still be permitted in another.
Most people never experience problems. However, in some cases, the immune system can treat components of the ink as a threat and trigger an aggressive inflammatory response.
When that happens, inflammation may appear not only in the tattooed skin but elsewhere in the body too.
It becomes more serious if inflammatory cells associated with the reaction cross the blood-ocular barrier—a protective boundary intended to shield the internal structures of the eye.
Professor of Optometry and Optometry Course Director James Andrew Armitage and Linda Robinson, Head of Assessment, Clinical Optometry, at Deakin University, explain that this chain of events can lead to the rare diagnosis of tattoo-associated uveitis.
A 2025 paper in the journal Clinical and Experimental Ophthalmology, written by Australian eye health experts, reported 40 new Australian cases recorded between 2023 and 2025. The researchers noted that, with these cases included, the total number of reported cases worldwide has doubled since 2010.
Even so, tattoo-associated uveitis remains unusual. Researchers caution, however, that it may be under-recognised and therefore more common than current figures suggest.
Treatment options do exist, but outcomes vary. The report notes that even after treatment, around 75% of patients experience temporary vision loss, while 17% go on to have permanent vision loss.